Question

What additional force must be applied so that the block does not accelerate?

A. 40 N east
B. 40 N west
C.10 N east
D.10 N west

Answer 1

The answer is 10 N west

Answer 2

D. 10 N west.

Step-by-step explanation:

Forces along the west and east must be equal to make block static. Let F1 is the force along east, F2 is the force along west. So,

F1=F2

25=15+F

Where, F is the additional force required along west to keep bock in steady state.

F = 10 N west.

Hence, when 10N additional force is applied along west then block will not accelerate.